下肢动脉闭塞性病变临床常伴有腰腿疼、脚疼等症状。数字减影血管造影(DSA)是临床诊断的金标准,但由于有创性和较高的费用受到了一定的限制。64层螺旋CT具有更大的扫描范围、更好的时间及空间分辨率、无创性、安全、可靠等优点广泛用于临床~([1])。本研究将标准设定为彩超,对64层螺旋CTA对下肢动脉闭塞性病变诊断的准确率、灵敏度及特异度进行了分析。1资料与方法 Lower extremity arterial occlusive disease often accompanied by waist and leg pain, foot pain and other symptoms. Digital subtraction angiography (DSA) is the gold standard for clinical diagnosis, but is limited by its invasiveness and high cost. 64-slice spiral CT has a wider scanning range, better time and spatial resolution, noninvasive, safe, reliable, etc. widely used in clinical ~ ([1]). In this study, we set the standard as color Doppler ultrasound, and analyzed the accuracy, sensitivity and specificity of 64-slice CTA for the diagnosis of arterial occlusive disease of the lower extremities. 1 data and methods